himpunan penyelesaian sistem persamaan dari 2x + 3y + 3z = 4 .....(1) 2x - 6y + 9z = 5...... (2) 4x + 3z = 4......... (3)

(1)x2 + (2)
4x+6y+6z=8
2x-6y+9z=5
----------------- +
6x+15z=13 ...(4)
(3)x5 - (4)
20x+15z=20
6x+15z=13
--------------- -
14x=7
x=1/2
sub ke (3)
4*1/2+3z=4
2+3z=4
3z=2
z=2/3
sub ke (1)
2*1/2+3y+3*2/3=4
1+3y+2=4
3y=4-1-2
3y=1
y=1/3
HP={1/2,1/3,2/3}